peters



. gifting g unt @i e .w. B'U ss, or B0 ST 0 N, M A s sic saw 's Letters Patent No."62 ,-934, datedMcrch 19. 1867. I l

IMPROVED can srmno'.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, G. W. BUSS, of Boston, in the county of Suffolk, and State of Massachusetts, have invented an improved Spring for Railway and other Carriages; and I do hereby declare that the-following, taken in connection with the drawings which accompany and form part of this specification, is a description of my invention suilicient to enable those skilled in the art. to practise it. I

Letters Patent 'No. 36,766 were granted to me, dated October 28, 1862,. on 'an' improvement in wagonsor carriages, such improvement having reference to the manner of arranging or combining a spring and lever for supporting the hody of the carriage, as by reference to said patent will more fully appear. The present invention relates to the disposition of the spring and lever, '(upon a series of which the carriage-body is to be supported under the same general arrangement shown in such patent,) in such manner that they-are contained in at box or case, theflever and its fulcrum and the spring forming-a device completein itself and ready forapplication to the carriage-body in the best practical arrangement. 7 I

' The invention consists, primarily, in a new article of manufacture composed of a spring,-a lever and its fulcrum, and a spring-containing box, arranged and connected together, ready' for application to the carriage body. The drawings represent a device or devices embodying the invention- A, B, O, and D showing,'respeetively, a side elevation, an end view, a longitudinal central section, and a cross-section through the centre of the spring.

a den'otes a wrought-metal box, formed from sheet plate when hot, bybending down the sides 6 of .the plate, and pressing them into shape by dies against the sides of a former, andfinally striking down the top part a, so as to form strengthening or rigidifying'beads, d, at the upper corners of the box. The central part of each side, 11, of the heir has a circular formation in cross-section, to receive a cylindrical rubber spring, e, and a bulging formation, as seen as a provision for expansion of-the sides of this spring, as it is compressed in length. At one end of the box holes are made through the side plates for bearings for a fulcrum pin, 9, on which is hung a long lever, in, as seen at B, this lever entending the whole length of the box, and having an eye, 2', at its free end, for attachment of the link or device through which the lever-is connected with the truck or journal boxes of the car or darriage. Under the spring 4: the lever is spread laterally to form a head, It, to bear upon the end surface of the spring. The upper plateof the box has ,bolesfl, formed in "it, by which to secure it to the under surface of. the body or frame'of the car' or carriage. This plate ex-tends nearly to the end oi the lever, so that the weight of the carriage resting upon the spring is borne equally over the whole sur face of the frame above the lever, instead of unduly in that part of the frame immediately adjacent-to the spring, as it would he were no box or'plate employed, or adjacent to,-thc'end of the box,--if the top plato extended only as far as the spring. This arrangement of the spring and lever is particularly applicable to horse railway carriages, being easy of application to the body of the ear, and of connection with and disconnection from the truck, and affording a protection to the spring. Although I consider the swaged orstruekup formation of the box from sheet inetal the most practical, yet said'boat may -be formed of cast metal to very good advantage, and the shape of the box, the nature of the spring, and the form of the lever may be modified in'vari ou's ways, retaining the essence of .my invention or arrangement. One of such modifications is shown at E, which. represents a east-metal box, containing two springs and two levers, and making aconvenient construction to apply transversely to the car or carriage-body. And F represents a section of a east-metal box, containing steel elliptic springs, each of these modifications and of othcrswhich will be. obvious, all-*eontaiuing, however, the same relative arrangement of lever, fulcrum, spring, and box. In the employment of elliptic springs, as shown at F, the springs or plates may he graduated in thickness and strength from the lever to theinnermost, spring, theplutes nearest the lever being the lightest. By such construction and arranging the plates as shown, the springs have a practical disposition for either light or heavy loads, without undue stress upon thelight springs when a heavy load is being carried, the operation of the springs being as follows: When a light load is carried, the light springs yield readily and suflicicntly, while as the load increases in weight the adjacent light springs are first compressed andbrought together, and by their contact are removed from further strain, while the stronger springs receive and yield. to the increase of weight.

' I do not herein claim the combination of a lever, fulcruim and spring for application to a carriageqbotiy and truck, 'anch eo'mhination being shown in my patent already referred to, and my present invention relating specifically to the manner of arranging and connecting the lever, spring and fulcrum, so as to form them into a spring device, having the bcaringof the fulcrum rc'udy for upplieation to e carriuge-hotlyianei thc. free end of .the lever ready for cbniicction'viith the carriage truck, with prorisiqn fer .housmg or protecting the spnng.

andfulcrum.

I claim asks; new article of manufacture a. spring for railway and other carrieges made up of the following combined devices, namely, an open metal bo'rg, a lover hung upon fulcruni in 'eneend of the box, and having its free end projecting out from the opposite end of the box for connection with the truck, anti a spring inter'p os ed between the lever and the roof of the box the box serving as aheanngfor thevfulcrum in, as a means pf connection between and support of the spring and lever, and as a. means of applying the spring, lever, and fulcrum to the-body oi the carriage, the whole being :irranged to operate substantially as set forth.

I G. w. BUSS.

Witnesses:

GOULD, J. B. CROSBY. 

